Derrick.



H.'AUCHU.

DERRICK.

-APEucATmN FILED lune 29, |914.

Patented J une 8, 1915.

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H. AUCHU.

DERRICK.

APPLICATION FILED JUNE29, 1914.

PatentedJ une 8, 1915 hmmm.

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APPLICATION FILED IIINEZS. 1914. 1,141.919. Patented June 8, 1915.

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HENRY AUCHU, 0F EMPORIUM, PENNSYLVANIA.

DERRICK.

Specification of Letters Patent.

Patented June-8, 1215.

Application led June 29, 1914. Serial No. 847,896.

T0 aZZ 'whom it may conce/m: l

Be it known that I, HENRY AUCHU, a citizen of the United States,residing 'at Emporium, county of Cameron, and Stateof Pennsylvania, haveinvented certain new and useful Improvements in Derricks, of which thefollowing is a specification.

This invention relates to derricks.

In drilling operations in the oil regions, the common practice is toerect a wooden derrick. These derricks become permanent structures, soongo to pieces, and prove eX- pensive if the drilling operation isunsuccessful as they are not adapted to be taken apart and used atanother location. The success ofan oil well drilling operation can neverbe foretold and the cost of the derrick is lost if oil or gas is notstruck.

My object is to provide an .improved knock-down fire-proof metalder-rick for use in oil well drilling operations and which will belofsuch construction that it may be readily erected or taken down and movedfrom lace to place if its use elsewhere is desired, thereby saving theexpense of erecting a new derrivck when a new well is driven or an oldwell is to be cleaned, or any operation in connection with a well is tobe carried on where the use of a derrick is necessary.

In carrying out the invention, I provide standards or uprights composedof telescopic sections which can be drawn out or collapsed, and improvedmeans for holding the sections in extended relation, subjecttotelescoping when desired; as fully set forth hereinafter.

In the accompanying drawings: Figure 1 is a perspective of the completederrick; Fig. 2, a detail perspective showing the iirst step in theerection of the derrick; Fig. 3, a similar view showing the derrickpartially erected and illustrating how the telescopic standards oruprights are drawn out as the structure is built; Figs. 4 and 5, detailviews of one of the corner clamps for connecting the transverse bracesto the uprights orstandards; Fig. 6,;a detail of one of the feet; Fig.7, a detail of one of the joints or connections between the telescopicsections; Fig. 8, a similar view between the cap frame and the end ofone of the uppermost standard sections; Fig. 9, a detail of the capframe; Fig. 10, a detail showing a sectional ladder section.

The completed derriclr shown in Fig. 1 is*l erected by first arrangingthe parts as shown in Fig. 2 and then continuing the construction in themanner shown in Fig. 3.

Referring to Fig. 2, the base of the derrick is rectangular and iscomposed of pieces of angle iron 1. The four standards or uprights atthe corners of the derrick are composed of telescoped tubular sections2, 3, f and 5 which fit freely and yet not too loosely within eachother, as shown in Fig. 2. The lowermost sections 2 are provided withfeet 5 (Fig. 6) which are secured thereto by bolts 7. The feet 5 may bebolted or connected to any suitable foundation or set on concrete orrock piers. Outer angular clamps 8 and inner angular clamps 9 which havea substantially semi-circular part 10, are bolted to the base sections 1by removable bolts 11, and they embrace the uprights or standards 2 andafford means for connecting them to the base sections l1. Angle ironbraces 12 similar to the base sections l, andv clamps 8, 9, and bolts 11connect the braces 12 to the uprights 2 at suitable distances apart and,similarly, this arrangement of braces and clamps is carried out inconnection with the tubular sections 3, 4, to the full height of thederrick. The derrick is provided with a cap frame 13 (Fig. 9) composedof angle iron sides connected together and provided at their cornerswith connectors 14 which have flanges 15 overlapping the outer faces ofthe angle iron sections of the frame 13 and these members 14 are securedto the frame 13 by bolts 1G. They have gudgeons or lugs 17 which arereceivedin the upper open ends of the tubular sections 4 and aredetachably bolted thereto at 18. Preferably, no braces are inn terposedbetween the base sections 1 and the next higher braces 12 toy affordfree open sides to the lower portion of the derrick so that the drillersand other workmen may freely pass in and out of the derrick and toprovide ample room for the drilling rig.

'Between the two lower sets of braces 12 are interposed the inclinedupright braces 19 which are detachably connected to the braces 12 by`ybolts 20. Interposed betweeneach successively higher set of braces 12are the crossed braces 21 which are detachably connected to the braces12 at 22 and are pivotally connected together at 23. These braces 21 arethus arranged so that by detaching the bolts '22, the braces may befolded together on their pivot 23, thus minimizing the number of part-swhich are disconnected when the derrick is taken down.

To afford access to the top of the derrick and to provide means for theuse of dthe workmen in erecting the derrick, I preferably provide asectional laddercomposed of independent sections 24, each of which hashooks 25 at its upper end to clamp over one of the braces l2. The lowerends of the ladder sections 24 may be bolted to the braces 12, ifdesired, or these sections may hang freely from their hooks or clamps25.

Each ladder section is, however, adapted for detachment independently ofthe remaining ladder sections, and said sections are put up or takendown, one after another, as the derrick is erected or dismantled.

Fitted into the lower ends of the tubular' sections 3 and 4, are plugsor heads 26 which are secured by bolts 2.7. When the sections areextended, as when the derrick is being erected, after a section 3, forinstance, has been raised, a removable I-bolt or pin 28 is passedthrough suitable holes in the section 2 and another I-bolt or pin 29through suitable holes in the lower end of the section 3 to support theupper sectio'n by the lower one in the manner shown in Fig. 7. Thisconstruction is used with succeeding sections. By merely removing thepins or bolts 28, 29, the sections can be telescoped,'when the derrickis taken down for transporta-tion to another location.

To afford means for raising the sections' 3 and 4, block and tackle 31supported by a removable gin pole 32, may be connected, as shown in Fig.3. The gin poles 32'are provided with a fork or clawv 33 to engage oneof the cross braces 12, these poles being raised and rested on highercross braces, as the'derrick is built up. Preferably, the derrick isbuilt in the manner shown in Figs. 2 and 3. Referring first to Fig. 2,the base sections 1 are laid down and the clamps 8 and 9 are firstsecured to the standard sections 2 and then to the base sections 1. The

Y standard sections 2 have their braces 12 and 34. The remaining bolts11 are then secured to the base sections 1 and to the clamps and braceshigher up. The lower part of the derrick having been thus erected, asshown in Fig. 3, the lowest section 24 of the ladder is hooked over thebraces 12 and the workmen ascend to the top of thev part of the derrickerected andr place the poles 32, as shown, and connect .the hooks of theblock and tackle 31 tothe sections 3. The sections 3 may thus beelevated and secured` by the pins or bolts 28, 29, after lwhich thebraces 12 and 23 may be secured. Another ladder section 24 is thenplaced and the workmen ascend to a higher point and use the poles 32 todraw up the sections 4. 'This operation is continued until all of thetelescopic sections of the uprights or standards have. been drawn up andthe braces secured, after which the cap frame 13 is placed in position,the gudgeons or lugs 17 being received the open upper ends of the`uppermost tubu lar sections and secured thereby by the pins or bolts1S. 1V hen the derrick is toA be taken down for removal to anotherpoint, the cap frame 13 is first removed and then the uppermostsectionsl 4 are lowered, after removal of the braces and thus thederrick is taken down,sectionb'y section.

The cap frame and its connection to the. uprights constitutes thesubjectanatter of a divisional application, Serial No. 13,181, filedMarch 9, 1915.

` Having thus described my invention, what I claim as new and desire tosecure by-Letters latent, is:-

In a knock-down derrick, a standard or upright composed of telescopicsections, and

means for supporting upper sections from lower ones consisting of a plugat the lower y endof the uppersection, a removable transve'rse pincarried bythe lower section and serving as a support for said plug, andaremovable pin on the upper section, said pin resting on the upper end ofthe lower section.

In testimony whereof, I hereunto afiix my of two witnesses.. HENRYAUCHU.

Witnesses:

IVM. E. SHJELL, S. V. LocKWooD.

signature in presence

